Mechanical motor.



W. P. ROBERTSON.

MECHANICAL MOTOR. PPL'ICATION FILED 1UNE7| 1913.

Patented May 16, 1916.

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MECHANICAL MOTOR.

APPucATloN FILED luNE 1. 1913.

Patented May 16, 1916.

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WILLIAM P. ROBERTSON, F NEW YORK, N. Y.

MECHANICAL MOTOR.

4 Specification of Letters Patent.

Patented- May 143, 1916.

Application filed June 7,1913. Serial No. 772,728.

To all whom t may concern.'

Be it known that I, WILLIAM I). ROBERT- soN, of the city of `N ew York, in the county of New York and State of New York, have invented certain new and useful Improvements in Mechanical Motors; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to mixing apparatus and particularly to the class of mixers especially adapted for use in mixing liquids such as drinks or the like in a glass or other suitable vessel.

The object of my invention is to produce a mechanical mixer which shall be simple in its operation, efficient in its action, and economical in its construction.

As shown herein, my invention comprises a spring operatedv mechanism, the Vsaid springs being energized by the shifting of the mixing part of the device into coperative relation with the vessel containing the liquid to be mixed and in the particular form shown herewith the springs are arranged to work in relay viz: the second spring beginning its operation after the first spring is denergized.

In the accompanying drawings :Figure 1 is a side elevation partly in section. Fig. 2 is a sectional plan. Fig. 3 is a perspective view of the complete apparatus as set up ready for use.

In the drawings 1 is a base upon which is mounted an upright 2 having a neck portion 3 and a vertical column 4 provided with a rack 5 in one face thereof, this rack coperating with a spur gear 6 which is mounted on the sleeve 7. This sleeve passes through and is journaled in a wall piece 8, said sleeve having at its other end a gear) which coperates with pinionslOV and 11 secured to sleeves 12 and 13 revolubly mounted on auxiliary shafts 14 and 15, secured in the wall 8 and in the outer casing wall 16.

On the shafts 14 and 15 respectively, the springs 17 and 18 are secured by one end and the other ends of the said springs are respectively fastened to the gears 19 and 2O which are revoluble about the shafts 14 and and not secured thereto. On the sleeves 12 and 13 respectively are the arms 21 and 22 carrying pawls 23 and 24 which coperate with the ratchets 25 and 26 which are secured to the gears 19 and 2O by the pins 27.

y A main shaft 28 is journaled in the casing 1G, the wall 8, and the wall 29, and has at one of its ends a miter gear 30, and near its other end, ratchets 31 and 43 coperating respectively with pawls 32 and 42 pivoted respectively to pinions 34 and 41 which mesh respectively with gears and 19.

lVhcn the whole operating mechanism is moved downward on the column 4, the gears 19 and 20 revolve from right to left, but when it is moved in an ascending direction the said gears have no movement, other than such movement from left to right as may be imparted to them by any remaining pressure of the springs 17 and 18, as the pawls 23 and 24, which are respectively connected to pinions 10 and 11, are sliding from left to right over the ratchets and 26. In the ascending motion of the operating mechanism there will be no motion to shaft 28, gear 30, miter gear 37, or shaft 38, other than such motion from right to left of shaft 28, and left to right of shaft 38, as may be imparted by anyy remaining pressure of springs 17 and 18 through the action of the `gears as explained above. It is evident that a downward movement of the operating mechanism winds the springs 17 and 18 while an ascending motion has the effect of unwinding them, providing the tension of said springs has not been fully released in the disengagement of pawls 23 and 24.

When the device is not being operated the casing containing the mechanism is held at rest on the hook 35 pivoted at 36 to the vertical column and when the said casing is moved to the position indicated in Fig. 1

of the drawings, the cooperation of the gear 6 with the rack 5 on the column 4 effects the energizing of the springs 17 and 18. At this relative position of the casing 1G and the column 4 a tail on the pawl 23 is brought into cooperation with a stop 37 on the column 4, and if the said casing is moved downwardly a slight distance from this position the pawl 23 will be lifted out of engagement with the ratchet 25 and the gear 19 will be rotated under the impulse of the spring 17. The gear 19 being in mesh therewith, will rotate the pinion 41 carrying the pawl 42 and the said pawl will then coperate with the ratchet 43 to rotate the shaft 28 and the gear 30 which in turn will cooperate with the miter pinion 37 on the shaft 38 journaled at 39 to the casing, thereby effecting rotation of the pinion 87 and the shaft 38 which is provided with the end piece 410.

The gear 20 on the shaft 15, is in mesh with the pinion 3&1 which cariies a pawl 32 cooperating with the ratchet 31. As the pinions @l1 and 3drevolve freely around the shaft 28 there is no effect upon the gear 20 until the pawl 521 is released, andtherefore I have provided means to release said pawl 21: to allow the gear 20 to rotate under the impulse of the spring 18 as follows: Upon a rod le? is pivoted a pin gear 115, which is under control of a detent a6, carried on the bracket 47, and held in cooperation with the indentations 118 by the spring 4:9. Coperating with the teeth 50 on the gear 5 are the pins 51 secured to the gear 19, so that for each revolution of the gear 19, the gear Ll5 will be moved one notch i8 or two teeth 50. At 52 on the gear 45 is pivoted a pitinan supported in a bearing 511 and having at its other end a stop 55 pivotally mounted thereon so as to yield in one direction. IWhen the gear is moved to its extreme downward position the stop 55 will abut upon a tail on the pawl 21 and raise the same out of cooperation with the ratchet '26, thereby allowing the gear 20 to rotate under the impulse of the spring 18 and bring about through the train of gears previously described, the rotation of the shaft 38 and its end piece 110. It is obvious that this end piece LO can be of such form as to secure the best circulation and mixing of the contents of the container 57. A suitable spring clamp 56 is shown, secured to the upright 2 t0 hold the container 57 while the contents are being mixed.

The operation of my device is very simple and consists of releasing the casing 1G from the hook and moving the saine downwardly on the rack 5 of column l which causes the winding up of the springs 17 and 18, and brings the lower end of the shaft 38 into the compound to be mixed.

When the tail on the pawl 23 cooperates with the stop 37 on the column Ll. the said pawl releases the ratchet Q5 and the gear 19 is rotated by the spring 17. In turn the atchet Q6 is rotated by the spring 18 and when both springs are denergized the article to be mixed has been thoroughly mingled by the rotation of the shaft 38. In many uses one train of gearing will be suflicient to effect the mixing while in others the full action may be required.

I have shown herein a preferred embodiment of my invention comprising a comparatively inexpensive, thoroughly efficient,

'and compact structure of great durability,

and as its source of energy is self contained and becomes operative through the simple manual operation necessary to bring the contents of the containing vessel into relaw tion with the mixing device itself, there is no expense incurred for electric or other power. i

I do not desire to limit myself strictly to the preferred form of my invention shown herein as it is obvious that changes may be made without departing from 'the spirit of my invention.

I claim:

1. In a mechanical motor having a rotary shaft and a plurality of trains of gearing for successively operating said shaft, each of said trains of gearing having an actuating spring, a casing inclosing said gearing, a support on which said casing is movably mounted, means operated by the partial movement of said casing on said support for placing said springs under tension, means operated by the further movement of said casing for releasing one of said trains of gearing and means actuated by said train of gearing for releasing the other train.

2. In a device of the character described, a rack, a casing movable along said raclr, a shaft mounted in said casing, a spring in said casing, gearing for rotating said shaft and adapted to engage said rack and actuated by the movement of said casing to create tension in said spring, and means rendered eective by the further movement of said casing for releasing said spring.

3. In a device of the character described, an upright support having a rack, a casing vertically movable on said support, a train of gearing having an actuating spring carried by said casing, a rotary shaft alsorcarried by said casing and operated by said gearing, a gear wheel carried by said casing for operating said gearing and in mesh with said rack, means operated by the downward movement of said casing for placing said spring under tension, and means operated at or near the limit of such downward move- Ament for releasing lsaid spring to eect the rotation of said shaft.

In witness whereof, I have .hereunto set my hand this 17th day of April, 1913.

HWILLIAM P. ROBERTSON.

IVitness Y JULIUs W. MANNEBAGH.

Gopie of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

